php - 如何构建一个将通过多种方法更新的数组

Question

我必须检查元素 ID 是否重复，如果重复则用“-1”更新它。

//get all elements and loop through each element
public function main(){
    $products = $this->getProducts();
    foreach($products as $product){
        $formatted_products = $this->processProducts($product);
    }
}
public function processProducts($product){

    //builds a csv with product data
    'id' => $this->duplicateSkus($product->getSku());

    if($product->getTypeId() == "configurable"){
        $csv = $this->getVariants($csv, $product);
    }
}

public function getVariants($csv, $product){
    'id' => $this->duplicateSkus($childProduct->getSku())
}

//my main method where I check if ids are unique
public function duplicateSkus($product_sku){
    if(in_array($product_sku, $products_sku)){
        $product_sku = $product_sku."-1";
    }
    $products_sku[] = $product_sku;
    return $product_sku;

}

我的问题是构建一个包含所有 ID 的数组 $products_sku 并检查每个 ID。

谢谢!

Answer 1

如果您想要一个可以在整个类中使用的数组，请为其创建一个属性:

private $array = array(); // Set up an array for this class only

然后你可以初始化它:

public function __construct()
{
    $this->array = $this->AssignData; // Initialise the array of data
}

/**
* Assigner for the private $this->array
*/
private function AssignData()
{
    $this->array = ["one"=>1, "two"=>2, "three"=>3, "four"=>4, "five"=>5, "six"=>6, "seven"=>7, "eight"=>8];
}

然后你就可以在你的类里面使用它了:

public function PrintArray()
{
    if (array_key_exists("four", $this->array))
    {
        print $this->array["four"];
    }
}

总的来说:

class Foo
{
    private $array = array(); // Set up an array for this class only

    public function __construct()
    {
        $this->array = $this->AsignData; // Initialise the array of data
    }

    /**
    * Assigner for the private $this->array
    */
    private function AsignData()
    {
        $this->array = ["one"=>1, "two"=>2, "three"=>3, "four"=>4, "five"=>5, "six"=>6, "seven"=>7, "eight"=>8];
    }

    public function PrintArray()
    {
        if (array_key_exists("four", $this->array)) //Check the array key exists
        {
            print $this->array["four"];
        }
    }
}

编辑

为 array_key_exists 添加了检查功能

public function CheckKeyExists($key, $search)
{
    if (array_key_exists($key, $search))
        return true;
    else
        return false;
}